org.lcsim.mc.fast.tracking

Class ReconTrack

java.lang.Object

org.lcsim.mc.fast.tracking.ReconTrack

All Implemented Interfaces:

Track

public class ReconTrack
extends Object
implements Track

Provides MC smeared track.
Handles to smeared and not-smeared set of DocaTrackParameters are provided.

Version:

$Id: ReconTrack.java,v 1.12 2012/07/26 16:46:14 grefe Exp $

Author:

Tony Johnson, Wolfgang Walkowiak

Field Summary

Fields

Modifier and Type	Field and Description
private double[]	_refpoint
private List<TrackState>	_trackStates
private DocaTrackParameters	m_nosmear
private DocaTrackParameters	m_smear
private int	m_tcharge
private static String[][]	matrixI
private Particle	mc

Constructor Summary

Constructors

Constructor and Description
ReconTrack(double bField, TrackResolutionTables parm, SimpleTables SmTbl, Random rand, Particle mc, boolean hist, boolean simple)

Method Summary

Methods

Modifier and Type	Method and Description
SymmetricMatrix	calcMomentumErrorMatrix(double l) Calculate the error matrix for the momentum for a point on the smeared track specified by l.
double[][]	calcPositionErrorMatrix(double l) Calculate the error matrix for the position coordinates for a point on the smeared track specified by l.
boolean	fitSuccess() Returns true if the track has been successfully fitted
int	getCharge() Get the full charge.
double	getChi2() Get the chi2 from smearing.
double	getdEdx()
double	getdEdxError()
double[]	getDoca() Get DOCA (2-dim) of smeared track.
double[]	getDocaMomentum() Get momentum at DOCA (2-dim) of smeared track.
double[]	getDocaMomentum(double[] refPoint)
Hep3Vector	getDocaMomentumVec(double[] refPoint)
Hep3Vector	getDocaMomentumVec(Hep3Vector refPoint)
double	getDocaMomentumX() Get x coordinate of momentum of the smeared track at DOCA.
double	getDocaMomentumY() Get y coordinate of momentum of the smeared track at DOCA.
double	getDocaMomentumZ() Get z coordinate of momentum of the smeared track at DOCA.
double[]	getDocaPosition(double[] refPoint)
Hep3Vector	getDocaPositionVec(double[] refPoint)
Hep3Vector	getDocaPositionVec(Hep3Vector refPoint) Calculate and get Doca position on the smeared track with respect to any space point.
double	getDocaPt() Get transverse momentum of the smeared track at DOCA.
double	getDocaTransversePathLength(double[] refPoint)
double	getDocaTransversePathLength(Hep3Vector refPoint) Calculate and get path length on the smeared track for a doca to any space point in respect to the track defining doca (with respect to the origin).
double	getDocaX() Get x coordinate of DOCA of smeared track.
double	getDocaY() Get y coordinate of DOCA of smeared track.
double	getDocaZ() Get z coordinate of DOCA of smeared track.
SymmetricMatrix	getErrorMatrix() Get the full error matrix.
private SymmetricMatrix	getErrorMatrixFromTable(ResolutionTable table, double abscth, double ptot)
Particle	getMCParticle() Get the MC particle for this track.
double[]	getMomentum() Get momentum of smeared track at original vertex point.
double[]	getMomentum(double l)
Hep3Vector	getMomentumVec()
Hep3Vector	getMomentumVec(double l) Calculate and get momentum on track with respect to any path length l on track (l in xy plane).
double	getMomentumX() Get x coordinate of momentum of the smeared track at original vertex.
double	getMomentumY() Get y coordinate of momentum of the smeared track at original vertex.
double	getMomentumZ() Get z coordinate of momentum of the smeared track at original vertex.
int	getNDF() Get the number degrees of freedom.
DocaTrackParameters	getNotSmearedTrack() Get the complete parameter set for the not smeared track.
double[]	getPosition(double l)
Hep3Vector	getPositionVec(double l) Calculate and get position on track with respect to any path length l on track (l in xy plane).
double	getPt() Get transverse momentum of the smeared track at original vertex.
double	getPX() Get x coordinate of momentum of the smeared track at original vertex.
double	getPY() Get y coordinate of momentum of the smeared track at original vertex.
double	getPZ() Get z coordinate of momentum of the smeared track at original vertex.
double	getRadiusOfInnermostHit()
double[]	getReferencePoint() Get the original vertex point of smeared MC track.
double	getReferencePointX() Get x coordinate of the original vertex point of smeared MC track.
double	getReferencePointY() Get y coordinate of the original vertex point of smeared MC track.
double	getReferencePointZ() Get z coordinate of the original vertex point of smeared MC track.
DocaTrackParameters	getSmearedTrack() Get the complete parameter set for the smeared track.
int[]	getSubdetectorHitNumbers()
List	getTrackerHits()
double	getTrackParameter(int i) Get an individual track parameter.
double[]	getTrackParameters() Get the track parameters as an array
List	getTracks()
List<TrackState>	getTrackStates()
int	getType()
boolean	isReferencePointPCA()
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

matrixI

private static final String[][] matrixI

m_nosmear

private DocaTrackParameters m_nosmear

m_smear

private DocaTrackParameters m_smear

mc

private transient Particle mc

m_tcharge

private int m_tcharge

_refpoint

private double[] _refpoint

_trackStates

private List<TrackState> _trackStates

Constructor Detail

ReconTrack

ReconTrack(double bField,
          TrackResolutionTables parm,
          SimpleTables SmTbl,
          Random rand,
          Particle mc,
          boolean hist,
          boolean simple)

Method Detail

getCharge

public int getCharge()

Get the full charge.

Specified by:

getCharge in interface Track

getChi2

public double getChi2()

Get the chi2 from smearing.

Specified by:

getChi2 in interface Track

Returns:

Chi Squared

See Also:

Track.getNDF()

getDoca

public double[] getDoca()

Get DOCA (2-dim) of smeared track.
Note: Use #getNotSmearedTrack().getDOCA() to access parameters of the not smeared track.

getDocaMomentum

public double[] getDocaMomentum(double[] refPoint)

getDocaMomentum

public double[] getDocaMomentum()

Get momentum at DOCA (2-dim) of smeared track.
Note: Use #getNotSmearedTrack().getMomentum() to access parameters of the not smeared track.

getDocaMomentumVec

public Hep3Vector getDocaMomentumVec(Hep3Vector refPoint)

getDocaMomentumVec

public Hep3Vector getDocaMomentumVec(double[] refPoint)

getDocaMomentumX

public double getDocaMomentumX()

Get x coordinate of momentum of the smeared track at DOCA.

getDocaMomentumY

public double getDocaMomentumY()

Get y coordinate of momentum of the smeared track at DOCA.

getDocaMomentumZ

public double getDocaMomentumZ()

Get z coordinate of momentum of the smeared track at DOCA.

getDocaPosition

public double[] getDocaPosition(double[] refPoint)

getDocaPositionVec

public Hep3Vector getDocaPositionVec(Hep3Vector refPoint)

Calculate and get Doca position on the smeared track with respect to any space point.

getDocaPositionVec

public Hep3Vector getDocaPositionVec(double[] refPoint)

getDocaPt

public double getDocaPt()

Get transverse momentum of the smeared track at DOCA.

getDocaTransversePathLength

public double getDocaTransversePathLength(Hep3Vector refPoint)

Calculate and get path length on the smeared track for a doca to any space point in respect to the track defining doca (with respect to the origin). The length l is given in the transverse plane.
Use L = l*tan(lambda) to convert.

getDocaTransversePathLength

public double getDocaTransversePathLength(double[] refPoint)

getDocaX

public double getDocaX()

Get x coordinate of DOCA of smeared track.

getDocaY

public double getDocaY()

Get y coordinate of DOCA of smeared track.

getDocaZ

public double getDocaZ()

Get z coordinate of DOCA of smeared track.

getErrorMatrix

public SymmetricMatrix getErrorMatrix()

Get the full error matrix.

Specified by:

getErrorMatrix in interface Track

See Also:

getTrackParameter(int)

getMCParticle

public Particle getMCParticle()

Get the MC particle for this track.

getMomentum

public double[] getMomentum(double l)

getMomentum

public double[] getMomentum()

Get momentum of smeared track at original vertex point.
Note: Use #getNotSmearedTrack().getMomentum() to access parameters of the not smeared track.

Specified by:

getMomentum in interface Track

Returns:

getMomentumVec

public Hep3Vector getMomentumVec(double l)

Calculate and get momentum on track with respect to any path length l on track (l in xy plane).

getMomentumVec

public Hep3Vector getMomentumVec()

getMomentumX

public double getMomentumX()

Get x coordinate of momentum of the smeared track at original vertex.

getMomentumY

public double getMomentumY()

Get y coordinate of momentum of the smeared track at original vertex.

getMomentumZ

public double getMomentumZ()

Get z coordinate of momentum of the smeared track at original vertex.

getNDF

public int getNDF()

Get the number degrees of freedom.

Specified by:

getNDF in interface Track

Returns:

The number of degrees of freedom

See Also:

Track.getChi2()

getNotSmearedTrack

public DocaTrackParameters getNotSmearedTrack()

Get the complete parameter set for the not smeared track.

getPX

public double getPX()

Get x coordinate of momentum of the smeared track at original vertex.

Specified by:

getPX in interface Track

Returns:

getPY

public double getPY()

Get y coordinate of momentum of the smeared track at original vertex.

Specified by:

getPY in interface Track

Returns:

getPZ

public double getPZ()

Get z coordinate of momentum of the smeared track at original vertex.

Specified by:

getPZ in interface Track

Returns:

getPosition

public double[] getPosition(double l)

getPositionVec

public Hep3Vector getPositionVec(double l)

Calculate and get position on track with respect to any path length l on track (l in xy plane).

getPt

public double getPt()

Get transverse momentum of the smeared track at original vertex.

getRadiusOfInnermostHit

public double getRadiusOfInnermostHit()

Specified by:

getRadiusOfInnermostHit in interface Track

getReferencePoint

public double[] getReferencePoint()

Get the original vertex point of smeared MC track.

Specified by:

getReferencePoint in interface Track

Returns:

isReferencePointPCA

public boolean isReferencePointPCA()

Specified by:

isReferencePointPCA in interface Track

getReferencePointX

public double getReferencePointX()

Get x coordinate of the original vertex point of smeared MC track.

Specified by:

getReferencePointX in interface Track

Returns:

getReferencePointY

public double getReferencePointY()

Get y coordinate of the original vertex point of smeared MC track.

Specified by:

getReferencePointY in interface Track

Returns:

getReferencePointZ

public double getReferencePointZ()

Get z coordinate of the original vertex point of smeared MC track.

Specified by:

getReferencePointZ in interface Track

Returns:

getSmearedTrack

public DocaTrackParameters getSmearedTrack()

Get the complete parameter set for the smeared track.

getSubdetectorHitNumbers

public int[] getSubdetectorHitNumbers()

Specified by:

getSubdetectorHitNumbers in interface Track

getTrackParameter

public double getTrackParameter(int i)

Get an individual track parameter.
The track parameters for LCD are defined as follows

Index	Meaning
0	d0 = XY impact parameter
1	phi0
2	omega = 1/curv.radius (negative for negative tracks)
3	z0 = z of track (z impact parameter)
4	s = tan lambda

Specified by:

getTrackParameter in interface Track

Parameters:

i - The index of the track parameter

Returns:

The track parameter with the specified index All parameters are given at the DOCA.

getTrackParameters

public double[] getTrackParameters()

Get the track parameters as an array

Specified by:

getTrackParameters in interface Track

See Also:

getTrackParameter(int)

getTrackerHits

public List getTrackerHits()

Specified by:

getTrackerHits in interface Track

getTracks

public List getTracks()

Specified by:

getTracks in interface Track

getType

public int getType()

Specified by:

getType in interface Track

calcMomentumErrorMatrix

public SymmetricMatrix calcMomentumErrorMatrix(double l)

Calculate the error matrix for the momentum for a point on the smeared track specified by l.

calcPositionErrorMatrix

public double[][] calcPositionErrorMatrix(double l)

Calculate the error matrix for the position coordinates for a point on the smeared track specified by l. Result is given as a 3x3 array for the matrix.

fitSuccess

public boolean fitSuccess()

Description copied from interface: Track

Returns true if the track has been successfully fitted

Specified by:

fitSuccess in interface Track

getdEdx

public double getdEdx()

Specified by:

getdEdx in interface Track

getdEdxError

public double getdEdxError()

Specified by:

getdEdxError in interface Track

toString

public String toString()

Overrides:

toString in class Object

getErrorMatrixFromTable

private SymmetricMatrix getErrorMatrixFromTable(ResolutionTable table,
                                      double abscth,
                                      double ptot)

getTrackStates

public List<TrackState> getTrackStates()

Specified by:

getTrackStates in interface Track